Initial commit: Runware-powered content generator foundation

Laravel app with a cost-tracked Runware.ai integration (image, video,
text generation), a hard monthly EUR budget cap with live USD/EUR FX
conversion, and a locally-maintained model/pricing table since
Runware's model-search API doesn't expose pricing.

app/Providers/AppServiceProvider.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Providers;
+
+use App\Services\Runware\RunwareClient;
+use Illuminate\Support\ServiceProvider;
+
+class AppServiceProvider extends ServiceProvider
+{
+    /**
+     * Register any application services.
+     */
+    public function register(): void
+    {
+        $this->app->singleton(RunwareClient::class, fn () => new RunwareClient(
+            apiKey: (string) config('runware.api_key'),
+            baseUrl: (string) config('runware.base_url'),
+        ));
+    }
+
+    /**
+     * Bootstrap any application services.
+     */
+    public function boot(): void
+    {
+        //
+    }
+}